All I can say is I really like this school. My son studies in Vibgyor High and I am really satisfied with the school. All the parents looking for a good school should personally check the school first hand rather than going by all these online reviews. Most of the negative reviews on this site seem to be only fulfilling personal vendettas against the Principal.
On the areas of improvement I would say the approach road needs improvement which in fact is already under construction.
About the fees, yes it is a costly school but I feel they are very well returning the value back to the students.